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Aerobic respiration requires oxygen (O 2) in order to create ATP. Although carbohydrates , fats and proteins are consumed as reactants , aerobic respiration is the preferred method of pyruvate production in glycolysis , and requires pyruvate be transported the mitochondria in order to be oxidized by the citric acid cycle .
The ratio is determined by comparing exhaled gases to room air. Measuring this ratio is equal to RQ only at rest or during mild to moderate aerobic exercise without the accumulation of lactate. The loss of accuracy during more intense anaerobic exercise is among others due to factors including the bicarbonate buffer system.
The reaction for aerobic respiration is essentially the reverse of photosynthesis and is simplified as C 6 H 12 O 6 + 6 O 2 → 6 CO 2 + 6 H 2 O + 2880 kJ/mol. In vertebrates, O 2 diffuses through membranes in the lungs and into red blood cells. Hemoglobin binds O 2, changing color from bluish red to bright red [43] (CO
During normal aerobic respiration the ratio would be somewhere between these values, as the TCA cycle produces both NADH and ubiquinol. The resulting P/O ratio would be the ratio of H/O and H/P; which is 10/3.67 or 2.73 for NADH-linked respiration, and 6/3.67 or 1.64 for UQH2-linked respiration, with actual values being somewhere between.
ADP can be converted, or powered back to ATP through the process of releasing the chemical energy available in food; in humans, this is constantly performed via aerobic respiration in the mitochondria. [2] Plants use photosynthetic pathways to convert and store energy from sunlight, also conversion of ADP to ATP. [3]
Although physiologic respiration is necessary to sustain cellular respiration and thus life in animals, the processes are distinct: cellular respiration takes place in individual cells of the organism, while physiologic respiration concerns the diffusion and transport of metabolites between the organism and the external environment.
V̇O 2 max (also maximal oxygen consumption, maximal oxygen uptake or maximal aerobic capacity) is the maximum rate of oxygen consumption attainable during physical exertion. [1] [2] The name is derived from three abbreviations: "V̇" for volume (the dot over the V indicates "per unit of time" in Newton's notation), "O 2" for oxygen, and "max" for maximum and usually normalized per kilogram of ...
Summary of aerobic respiration. Glycolysis is the metabolic pathway that converts glucose (C 6 H 12 O 6) into pyruvate and, in most organisms, occurs in the liquid part of cells (the cytosol). The free energy released in this process is used to form the high-energy molecules adenosine triphosphate (ATP) and reduced nicotinamide adenine ...